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Computer Science Mcqs 1971 MCQs [All-Courses]

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Get exam-focused Computer MCQs for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.Boost your IT knowledge with MCQs on Computer Basics, MS Office, Networking, Hardware, Software, and Cyber Security.Improve accuracy, strengthen concepts, and prepare smartly for any screening or written test.

All Topics  1971

Who invented the Abacus around 5000 years ago as a calculating device?
A Egyptians
B Greeks
C Chinese
D Indians
Correct Answer: Chinese
What is the default file extension of Notepad?
A .txt
B .docx
C .html
D .xlsx
Correct Answer: .txt
Explanation:

  • Notepad is a simple text editor in Windows used to create plain text files.
  • When you save a file in Notepad without changing the extension, it is automatically saved as filename.txt.
  • It does not support formatting (like bold, italics, or fonts), unlike Word (.docx) or Excel (.xlsx).
  • You can also save Notepad files as .html or other extensions, but .txt is the default.



Which one of the following has the shortest access time (fastest memory)?
A RAM
B Cache Memory
C Hard Disk
D Register
Correct Answer: Register
Explanation:


The basic language of computer consist of ____?
A Opcode
B Operand
C Both A and B
D None of these
Correct Answer: Both A and B
Explanation:

  • A computer’s fundamental instruction language is made up of two parts: the opcode and the operand.
  • The opcode tells the computer what action to carry out, while the operand provides the data or memory location needed for that action.

CAI stands for ______?
A Community Assisted Instruction
B Computer Assistant Instruction
C Computer Assisted Instruction
D Characteristics of Assistant Instructor
Correct Answer: Computer Assisted Instruction
Explanation:

  • CAI means using computers as a tool to support teaching and learning.
  • It improves education by offering interactive lessons and instruction tailored to individual learners.

CLI stands for _____?
A Common-line interface
B Command-line internet
C Command-line interface
D None of these
Correct Answer: Common-line interface
Explanation:

  • A command-line interface (CLI) is a text-based user interface (UI) used to run programs, manage computer files and interact with the computer.
  • Command-line interfaces are also called command-line user interfaces.


Which of the following is a storage device?
A Tape
B Hard Disk
C Floppy Disk
D All of the above
Correct Answer: All of the above
What does DMA stand for?
A Distinct Memory Access
B Direct Memory Access
C Direct Module Access
D Direct Memory Allocation
Correct Answer: Direct Memory Access
Which of the following is not anti- viruses software?
A Avira
B Kaspersky
C Oracle
D McAfee
Correct Answer: Oracle
Which programming languages are classified as low level languages?
A BASIC, COBOL, Fortran
B Prolog
C C, C++
D Assembly languages
Correct Answer: Assembly languages
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